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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">npe</journal-id><journal-title-group><journal-title xml:lang="ru">Ядерная физика и инжиниринг</journal-title><trans-title-group xml:lang="en"><trans-title>Nuclear Physics and Engineering</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2079-5629</issn><issn pub-type="epub">2079-5637</issn><publisher><publisher-name>МИФИ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.1134/S2079562919050166</article-id><article-id custom-type="elpub" pub-id-type="custom">npe-44</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Радиационная стойкость материалов и аппаратуры</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Radiation Resistance of Materials and Equipment</subject></subj-group></article-categories><title-group><article-title>ВЛИЯНИЕ ИОННОГО ОБЛУЧЕНИЯ ПРИ ТЕМПЕРАТУРЕ 500°С НА МИКРОСТРУКТУРУ И МЕХАНИЧЕСКИЕ СВОЙСТВА СПЛАВА W–6Re</article-title><trans-title-group xml:lang="en"><trans-title>Ion Radiation Impact on Microstructure and Mechanical Properties of W–6Re Alloy at 500°С</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Никитин</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikitin</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ул. Большая Черемушкинская 25, Москва, 117218</p><p>Каширское шоссе 31, Москва, 115409</p></bio><bio xml:lang="en"><p>Moscow, 117218</p><p>Moscow, 115409 </p></bio><email xlink:type="simple">nikitin@itep.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бобырь</surname><given-names>Н. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Bobyr</surname><given-names>N. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>пл. Академика Курчатова 1, Москва, 123182 </p></bio><bio xml:lang="en"><p>Moscow, 123182</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рогожкин</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Rogozhkin</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ул. Большая Черемушкинская 25, Москва, 117218</p><p>Каширское шоссе 31, Москва, 115409</p></bio><bio xml:lang="en"><p>Moscow, 117218</p><p>Moscow, 115409 </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Федин</surname><given-names>П. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Fedin</surname><given-names>P. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ул. Большая Черемушкинская 25, Москва, 117218</p></bio><bio xml:lang="en"><p>Moscow, 117218</p><p>Moscow, 115409 </p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Каратеев</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Karateev</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>пл. Академика Курчатова 1, Москва, 123182</p></bio><bio xml:lang="en"><p>Moscow, 123182</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гладких</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Gladkih</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Институтский пер. 9, Долгопрудный, Московская обл., 141701</p></bio><bio xml:lang="en"><p> Dolgoprudnyi, Moscow oblast, 141701 R</p></bio><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Захарова</surname><given-names>П. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Zakharova</surname><given-names>P. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ул. Большая Черемушкинская 25, Москва, 117218</p><p>Каширское шоссе 31, Москва, 115409</p></bio><bio xml:lang="en"><p>Moscow, 117218</p><p>Moscow, 115409</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>НИЦ “Курчатовский институт” – ИТЭФ; Национальный исследовательский ядерный университет “МИФИ”</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Alikhanov Institute for Theoretical and Experimental Physics, National Research Center “Kurchatov Institute”; National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>НИЦ “Курчатовский институт”</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research Center “Kurchatov Institute”</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>НИЦ “Курчатовский институт” – ИТЭФ</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Alikhanov Institute for Theoretical and Experimental Physics, National Research Center “Kurchatov Institute”</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Московский физико-технический институт</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Moscow Institute of Physics and Technology (National Research University)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>22</day><month>04</month><year>2024</year></pub-date><volume>11</volume><issue>3</issue><fpage>125</fpage><lpage>132</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Никитин А.А., Бобырь Н.П., Рогожкин С.В., Федин П.А., Каратеев И.А., Гладких Е.В., Захарова П.С., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Никитин А.А., Бобырь Н.П., Рогожкин С.В., Федин П.А., Каратеев И.А., Гладких Е.В., Захарова П.С.</copyright-holder><copyright-holder xml:lang="en">Nikitin A.A., Bobyr N.P., Rogozhkin S.V., Fedin P.A., Karateev I.A., Gladkih E.V., Zakharova P.S.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://npe.elpub.ru/jour/article/view/44">https://npe.elpub.ru/jour/article/view/44</self-uri><abstract><p>В работе рассмотрены результаты воздействия ионного пучка на монокристаллический сплав вольфрама, W–6Re. Такие материалы рассматриваются в качестве перспективных для использования в конструкциях термоядерных реакторов. Для моделирования радиационных эффектов и анализа радиационной стойкости материала использовалось облучение ионами Fe2+ с энергией 5.6 МэВ при температуре 500°С до максимальной повреждающей дозы 8 смещений на атом. Проведено сравнение микроструктуры материала до и после облучения. Методами просвечивающей электронной микроскопии показано, что в материале происходит образование структурных дефектов, дислокационных петель с размерами 2–15 нм и объемной плотностью 1.2 ⋅ 1023 м−3. Детальный анализ методами атомно-зондовой томографии обнаружил распад твердого раствора с образованием наноразмерных сегрегаций, обогащенных рением в среднем на 18 ат. %. Методами наноиндентирования определено радиационно-индуцированное упрочнение облученного слоя, которое составило 1.6 ГПа.</p></abstract><trans-abstract xml:lang="en"><p>The paper reports the results of the ion irradiation impact on a monocrystalline tungsten alloy, W‒6Re. This material is considered for use in the design of fusion reactors. Irradiation was carried out in order to simulate radiation effects and analyze the radiation resistance of the fusion reactor material. Specimens were irradiated with 5.6 MeV Fe ions at 500°C up to a maximum damage dose of 8 dpa. Microstructure of W–6Re was analyzed before and after irradiation. It is shown with transmission electron microscopy that the formation of structural defects, dislocation loops with sizes of 2–15 nm and a number density of 1.2 × 1023 m−3 occurs as a result of irradiation. Detailed analysis by atomic probe tomography microscope revealed the decomposition of the solid solution with the formation of nanoscale segregations enriched in rhenium by 18 at %. The radiation-induced hardening of the irradiated layer is determined by nanoindentation. The strength increment was 1.6 GPa.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>сплавы вольфрама</kwd><kwd>ионное облучение</kwd><kwd>моделирование радиационных повреждений</kwd><kwd>радиационное охрупчивание</kwd><kwd>атомно-зондовая томография</kwd></kwd-group><kwd-group xml:lang="en"><kwd>tungsten alloys</kwd><kwd>ion irradiation</kwd><kwd>radiation damage simulation</kwd><kwd>radiation embrittlement</kwd><kwd>atom probe tomography</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Настоящая работа выполнена при финансовой поддержке РФФИ в рамках научного проекта No. 18-32-20174 на оборудовании центра коллективного пользования КАМИКС (http://kamiks.itep.ru/) НИЦ “Курчатовский институт”–ИТЭФ.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Rieth M. et al. // J. Nucl. Mater. 2013. V. 432. 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